Pse Electric Service Handbook
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Electric Service Handbook June 2021 Non-residential Projects Permanent and Temporary Service ©2021 by Puget Sound Energy All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or information storage and retrieval system, without permission from Puget Sound Energy (PSE). Electric Service Handbook 2021 — Non-residential Projects Customer service—guaranteed PSE makes two service guarantees to you. First, we commit to keeping scheduled appointments, and second, we commit to restoring power outages as soon as we can. • If we don’t keep an appointment to install new service, reconnect existing service, or inspect natural gas equipment, you’ll receive a $50 credit on your PSE bill. • If your electric service is out for 120 consecutive hours or longer, you may be eligible to receive a $50 credit on your PSE bill. These service guarantees are in addition to nine service quality measures that track PSE’s performance, and are subject to certain conditions and may be suspended during unusual and exceptional circumstances. For more information, visit pse.com/guarantees. Electric Service Handbook 2021 — Non-residential Projects Table of contents Preface What this handbook contains . ......... 1 PSE’s service availability. ..1 Electrical service equipment inspection ...............................................1 Codes and jurisdictions ..........................................................1 Scheduling ....................................................................2 Other electric service information ...................................................2 How to contact Puget Sound Energy ................................................2 PSE’s service providers ..........................................................2 Overview: new permanent and temporary electric service hookup ..........................3 Chapter 1 Steps to a smooth permanent service installation The installation process ..........................................................4 Setting up an account ...........................................................4 Submitting an application for service. 4 Service voltages ................................................................5 Know what’s below: Call 811 before you dig ...........................................5 Cost for service ................................................................6 Additional service costs ..........................................................6 Voltage flicker and size of transformer ..........................................6 Voltage drop calculations ...................................................6 Chapter 2 Permanent underground services Service equipment installation responsibilities ..........................................7 Puget Sound Energy .......................................................7 Customer ...............................................................7 Preparing for your service hookup ..................................................7 Cable limits for transformers .......................................................8 Customer-provided trenches ......................................................9 Trench width for PSE facilities ................................................9 Trench routing/clearances ...................................................9 Trench excavating requirements for PSE facilities. 11 Trench and backfill requirements for primary electric line extension trenches (no PSE gas). .11 Trench and backfill requirements for primary electric line extension trenches (with PSE gas) ...........................................................12 Vault excavation requirements ....................................................12 Electric Service Handbook 2021 — Non-residential Projects Table of contents Conduit installed at vaults ........................................................13 Attaching a customer’s service line to a power pole ....................................16 When the power pole is on private property ....................................16 When the power pole is in a city/county/state right-of-way .........................16 Racking of cable in vaults ........................................................18 Cable ladder ............................................................18 Cable supports ..........................................................18 Cable training and identification ..............................................18 Customer wiring to energized PSE transformers .......................................20 Single-phase minipad transformers ...........................................20 Three-phase padmount transformers .........................................20 Transformer locations ...........................................................21 Landscaping and other obstacles ..................................................24 Working space ................................................................24 Guard posts for padmount and subsurface equipment ..................................25 Approved guard posts .....................................................26 Fault current levels .............................................................27 Chapter 3 Permanent overhead services Service equipment installation responsibilities .........................................29 Puget Sound Energy ......................................................29 Customer ..............................................................29 Preparing for your service hookup .................................................29 Service mast requirements .......................................................30 Height requirements ......................................................30 Clearances from gas meters ................................................30 Additional mast supports ...................................................30 Screw-in service knobs ..........................................................30 Installing the service equipment ...................................................31 List of customer-provided service entrance equipment ............................31 Terrain considerations for meter base/socket locations. ..31 Customer-owned meter pole .....................................................31 Meter pole requirements ...................................................31 Meter pole locations ......................................................31 Meter pole installation .....................................................31 Electric Service Handbook 2021 — Non-residential Projects Table of contents Chapter 4 Meter installation Other contacts ................................................................33 Section 1: General metering requirements Metering equipment responsibilities ................................................33 Puget Sound Energy ......................................................33 Customer ..............................................................34 Other customer responsibilities ....................................................34 Installing or removing meters by a qualified electrician .............................34 Inspections and approvals ..................................................34 Sealing provisions on enclosures .............................................34 Service conductors .......................................................34 Grounding ..............................................................34 Labeling ...............................................................35 Customer equipment .....................................................35 Current-limiting fuses. 35 Meter locations ................................................................35 Location requirements .....................................................35 Prohibited locations .......................................................35 Meter location requirements for manufactured commercial structures (school portables, industrial modular office, etc.) .................................36 Electrical room requirements ......................................................36 Electrical room locations in high-rise buildings ........................................38 Meter bases/sockets ...........................................................38 General requirements .....................................................38 Determining meter base/socket type ..........................................38 Meter base/socket clearances ...............................................39 Remote metering ..............................................................41 Meter pedestal requirements for remote metering ................................42 Meter pedestal location ....................................................42 Remote service requirements based on service ampacity ..........................42 Multiple meter installations .......................................................43 Multifamily ..............................................................43 Nonresidential ...........................................................44 Multiple meter base/socket labeling ...........................................44 Section 2: Self-contained metering requirements Single-phase services: 400 A or less and three-phase services: 200 A or less Meter base/socket main disconnect combinations .....................................45 Manual block bypass requirements ...........................................45 Disconnecting means and its sequence